- A
The matching rules are incorrectly configured, causing the system to use an older transaction; update the matching rules.
Why wrong: Incorrect. Matching rules affect deduplication, not field values.
- B
The transaction data is in a different data source that is not linked to the profile; create a new data source and link it.
Why wrong: Incorrect. The data source is already linked; the data is being ingested.
- C
The unification process has not been re-run after the latest data refresh; schedule the unification to run after each data refresh.
Correct. Unification must be re-run to incorporate new data into profiles.
- D
The incremental refresh is not configured correctly; reconfigure the data source to use full refresh instead.
Why wrong: Incorrect. The incremental refresh is working; the transaction data is current.
MB-910 Describe Dynamics 365 Customer Insights Practice Question
This MB-910 practice question tests your understanding of describe dynamics 365 customer insights. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are a Dynamics 365 consultant for a multinational retail company. The company has recently deployed Dynamics 365 Customer Insights to unify customer data from point-of-sale (POS) systems, an e-commerce platform, and a loyalty program. The data ingestion pipeline is working, and unified customer profiles are being created. However, the marketing team reports that segments built using the 'LastPurchaseDate' attribute are not returning accurate results. Specifically, a segment defined as 'Customers who purchased in the last 30 days' includes customers whose last purchase was over 60 days ago, and excludes some customers who purchased yesterday. The data source for purchase transactions is updated daily via an incremental refresh. The 'LastPurchaseDate' field is computed from the transaction entity. Upon investigation, you notice that the unified profile entity shows a 'LastPurchaseDate' that is older than the most recent transaction for some customers. What is the most likely cause of this issue, and what should you do to fix it?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The unification process has not been re-run after the latest data refresh; schedule the unification to run after each data refresh.
Option C is correct because in Dynamics 365 Customer Insights, the unification process is a separate step that merges and deduplicates data from multiple sources into unified customer profiles. Even if the data source is refreshed incrementally, the unified profile entity will not reflect the latest transaction data until the unification process is re-run. Since the segment uses the 'LastPurchaseDate' from the unified profile, it will show stale data until unification is executed after each refresh.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The matching rules are incorrectly configured, causing the system to use an older transaction; update the matching rules.
Why it's wrong here
Incorrect. Matching rules affect deduplication, not field values.
- ✗
The transaction data is in a different data source that is not linked to the profile; create a new data source and link it.
Why it's wrong here
Incorrect. The data source is already linked; the data is being ingested.
- ✓
The unification process has not been re-run after the latest data refresh; schedule the unification to run after each data refresh.
Why this is correct
Correct. Unification must be re-run to incorporate new data into profiles.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The incremental refresh is not configured correctly; reconfigure the data source to use full refresh instead.
Why it's wrong here
Incorrect. The incremental refresh is working; the transaction data is current.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume that refreshing the data source automatically updates the unified profiles and computed attributes, but in Customer Insights, unification is a separate orchestration step that must be explicitly scheduled or triggered after data refresh.
Detailed technical explanation
How to think about this question
In Dynamics 365 Customer Insights, data ingestion (refresh) and unification are distinct processes. Incremental refresh updates the raw data source tables, but the unified profile entity is only recalculated when the unification process is triggered, either manually or via a scheduled job. The 'LastPurchaseDate' attribute in the unified profile is derived from the transaction entity after deduplication and merging; if unification is not re-run, the profile retains the previous computed value, leading to segments based on stale data. A best practice is to schedule unification to run immediately after each data refresh to ensure profile attributes are current.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Describe Dynamics 365 Customer Insights — study guide chapter
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FAQ
Questions learners often ask
What does this MB-910 question test?
Describe Dynamics 365 Customer Insights — This question tests Describe Dynamics 365 Customer Insights — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The unification process has not been re-run after the latest data refresh; schedule the unification to run after each data refresh. — Option C is correct because in Dynamics 365 Customer Insights, the unification process is a separate step that merges and deduplicates data from multiple sources into unified customer profiles. Even if the data source is refreshed incrementally, the unified profile entity will not reflect the latest transaction data until the unification process is re-run. Since the segment uses the 'LastPurchaseDate' from the unified profile, it will show stale data until unification is executed after each refresh.
What should I do if I get this MB-910 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
This MB-910 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MB-910 exam.
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